question

simonosteopath avatar image
simonosteopath asked

Smartsolar 100/30 dropouts

capture-2024-06-01-11-24-37.png

Hi,

Does anyone have the above experience. The largest dropout shown is for 9 minutes.

This happens regularly but because of the way the data is compressed after a day, and then averaged, it is not visible in the trend after 24 to 48 hours.

I understand how the MPPT is derived but this should only take seconds, not nine-minutes.

Should I try simple disconnection and reconnecting again?

Thanks in advance,

MPPT SmartSolar
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2 Answers
nickdb avatar image
nickdb answered ·

Rather show PV voltage vs battery voltage. Power doesn’t help diagnose much.

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simonosteopath avatar image
simonosteopath answered ·

capture-2024-07-21-10-56-10.png

Here is the same issue but with voltage of panel shown, rather than power. As you'd expect, the voltage increases to the open circuit panel voltage when the solar power is zero.

What is happening here? The 10 minute regular MPPT cycles can be seen, but also these unexpected dropouts.

Thank you for any ideas. Does my unit have a fault?


Simon


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